Drainage module



FIG. 1 is a front view of the drainage module of the invention, the backview being a mirror image of the front view;

FIG. 2 is a bottom plan view of the drainage module of the invention;

FIG. 3 is a right side view of the drainage module of the invention, theleft side view being a mirror image of the right side view;

FIG. 4 is a bottom perspective view of the drainage module of theinvention; and,

FIG. 5 is a top perspective view of the drainage module of theinvention.

I claim the ornamental design for the drainage module, as shown anddescribed.